Patents by Inventor William A. Hand

William A. Hand has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Aquarium hydro hi-rise and crossover bridge assembly
    Patent number: 5067439
    Abstract: A system is provided which facilitates the filling and operation of a crossover bridge (30) for aquarium tanks (12, 40). A pump (58) is combined with a plurality of end sealing devices (56, 72) and a closeable aperture (38) in an intermediate vacuum portion (36) of the device to make the filling mode simplified and convenient.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: November 26, 1991
    Inventor: William A. Hand
  • Encompass drapery support assembly
    Patent number: 4357983
    Abstract: A drapery supporting assembly constructed to hold draperies or curtains in a position to form around and encompass furniture pieces and other objects which are placed adjacent thereto. A plurality of guides are provided within the assembly to reduce the friction imposed on drapery cords as they pass around arcuate portions of the frame member of the assembly during traversing operations.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: November 9, 1982
    Inventor: William A. Hand
  • Drapery for framing furniture or the like
    Patent number: D272876
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: March 6, 1984
    Inventor: William A. Hand
  • Curtain rod for use in framing furniture or the like
    Patent number: D276498
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: November 27, 1984
    Inventor: William A. Hand